High Performance Virtual Machine Migration With RDMA Over Modern Interconnects
One of the most useful features provided by Virtual Machine (VM) technologies is the ability to migrate running OS instances across distinct physical nodes. As a basis for many administration tools in modern clusters and data-centers, VM migration is desired to be extremely efficient to reduce both migration time and performance impact on hosted applications. Currently, most VM environments use the Socket interface and the TCP/IP protocol to transfer VM migration traffic. In this paper, the authors propose a high performance VM migration design by using RDMA (Remote Direct Memory Access).